I have owned quite a bit of things...lots of buying and selling.

Personally, I don't like JL's amps. I don't like their power ratings or sizes. They are good amps, but just don't work for the systems I like to design. I've been less and less impressed with RF as the years go by.

That said, there are still alot of good amps out there. Memphis has gotten mixed reviews, although the memphis belle is a monster of an amp.

If you got a lower powered 4 channel now, you could always bridge it to a set of comps later and add a separate sub amp in the future.